Centrifugal brake for reproducing mechanisms.



H. A. MYERS.

CENTRIFUGAL BRAKE FOR REPRODUCING MECHANISMS.

APPLICATION FILED MAR. I1, 1915.

1224,0919 Patented Apr.24,1917.

FIELE HUBER/l A. MYERS, 0F TOLEDO, OHIO.

GENTEIFUGAL BRAKE F03. REPRODUCING MECHANISMS.

Specification of Letters Patent.

Patented Apr. 24, 1917.

Application filed March 11, 1915. Serial No. 13,611.

To all whom it may concern:

Be it known that l, HUennr A. MYERS, a citizen of the United States of America, residing at Toledo, Lucas county, Ohio, have invented new and useful Centrifugal Brakes for Reproducing Mechanisms, of which the following is a specification.

This invention relates to sound reproducing mechanisms.

This invention has utility when incorporated in talking machines or music boxes in connection with recording and reproducing.

Referring to the drawings:

Figure 1 is a side elevation, with parts broken away, of an embodiment of the invention in a disk record recording or reproducing machine;

Fig. 2 is a plan view of the machine of Fig. 1;

Fig. 3 is a plan view of the rotatable brake disk element; and

Fig. 4 is a fragmentary section on the line VIIVII, Fig. 1.

Mounted upon the support or box 1 and free to swing relatively thereto is the hollow arm 2, fitting a little freely on the upstanding sleeve 3 so that the arm 2 may rock slightly toward and from the box 1. From this sleeve 3 extends the amplifier passage or sound way of gradually increasing cross-section, comprising the downwardly extending duct section 4: merging into the laterally extending portion 5, which connects with the rising portion 6 expanding into theterminal section 7.

Mounted centrally in the box 1 is the shaft 8 having the lateral bearing 9 provided by the bracket 10, which has the downwardly extending arm 11 providing a mounting for the adjustable foot bearing screw 12, sustaining the shaft 8.

The shaft 8 has the worm 13 engaged by the worm wheel 1% having thereon the pawl 15 pressed by the spring 16 to engage the ratchet wheel 17 fast on the shaft 18, while the worm wheel 14: is loose thereon. The bracket 10 provides the pair of bearings 19 for the shaft 18.

Wound in one direction about the shaft 18 is the flexible element or line 20 extending to the suspended weight 21, while oppositely wound about this shaft 18 is a second flexible element or line 22 extending to a lesser weight There is accordingly provided a weight motor with intermediate speeding up gearing for rotating the shaft 8. This is a most simple and effective driving device which may be easily wound up by pulling 21'. This winding up is quickly done and independently of driving through the gearing for the ratchet wheel runs away from the pawl 15 in this operation, while in the running or normal operation, the driving by the weight 21 of the shaft 1 1 and ratchet wheel 17 is through the pawl 15, to rotate the worm wheel 14 and the shaft 8.

Fast on the shaft 8 above the box 1 is the disk record carrier or platform 2 1 upon which may be mounted a disk record 25. Projecting from the lower side of this carrier 24; are pins 26 entering openings 27 (Fig. 3) in the arms 28 extending from the friction disk or rotatable brake element 29. This brake element 29 is positioned auto matically by the centrifugal speed regulator. Pivotally mounted by the ears 30 on the underside of the carrier 24 are the fly weights 31 having the fingers 32 coacting to force the disk 29 downward as the weights move outward, while the fly weight extensions 33 serve to lift this disk 29 when the weights move inwardly upon speed slackening.

Opposing the disk 29 is the non-rotatable friction disk or brake element 34: having the collar disposed just above the collar 36 fast on the shaft 8, so that vertical adjustment of the shaft 8 through the step bearing or screw 12 may determine the distance apart of the brake element disks, and accordingly fix the speed at which the fly weights begin checking action upon the rotative speed of the carrier 24;.

For supplemental adjustment of the speed for braking or actually stopping the carrier 24L, the lever 37 may be operated or set to the segment 38.

The device is compact and simple for refined operation, and disposal of the arm at one corner of the support permits use of a larger diameter record with a small size box.

What is claimed and it is desired to secure by Letters Patent is:

1. A centrifugal speed regulator for sound reproducers embodying a shaft, a rotatable record platform carrier mounted on the shaft, flyweights carried by and radially I.

the weight 23 to hoist the weight spaced from the shaft by the carrier, a brake ring sustained by the fiyweights, and an opposing brake member with which the ring may coact.

2. A centrifugal speed regulator for sound reprodueers embodying a shaft, a rotatable record platform carrier mounted on the shaft, friction brake for the carrier including a brake ring having radial extensions, flyweights carried by. and radially spaced from the shaft by the carrier, for operating the brake ring by coacting With the radial extensions thereof, and an opposing non-rotatable brake ring.

3. A centrifugal speed regulator for sound reproducers embodying a shaft, a 1'0- tatable record platform carrier mounted on the shaft, a friction brake for the carrier including a brake ring disposed adjacent the carrier, flyweights mounted on and Within the platform radius of the carrier and provided with extensions for moving the brake ring, said flyweights being spaced from the shaft by the carrier, an opposing non-rotatable brake ring, and means for adjusting the non-rotatable brake ring.

l. A centrifugal speed regulator for sound reproducers embodying a shaft, a rotatable platform carrier mounted on the shaft, a friction disk movable With the carrier, an opposing noirrotatable disk, and flyweight means mounted on and Within the platform radius of the carrier, said fly- Weight means being spaced from the shaft by the carrier, said friction disk and fly- Weight means having coacting radially dis posed extensions to move the disks relatively into braking position.

5. A centrifugal speed regulator for sound reproducers embodying a shaft, a rotatable record platform carrier mounted on the shaft, an opposing non-rotatable brake element, means for adjusting the carrierrelatively to the brake element, and centrifugal speed regulator means mounted on and Within the platform radius of the carrier including flyweights spaced by the carrier from the shaft and having extensions, and an annular member having radial eX tensions engageable by the flyWeight extensions in shifting the annular member into coacting position With the brake element.

In testimony whereof I my signature in the presence of two Witnesses.

HUBERT A. MYERS. lVitnesses GEO. E. KIRK, C. H. RAUGH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). C. 

